I have dataframe column which is array of strings I want to get result like I want to remove substring ‘fruit=’ Answer You can apply a function to the column. In this case split each string by = and take the last element of the result.
Tag: substring
Creating a list of positions of a substring within a string (DNA) (Python 3)
I am doing a bioinformatics course and I am trying to write a function to find all occurrences of a substring within a string. The output above should exactly match the following: [2, 4, 10] [2, 5, 6, 15, 17, 18] How can I fix this? Preferably without using regular expressions. Answer It looks like you badly …
Python: What is an efficient way to loop over a list of strings and group substrings in the list?
Background I would like to find and group the substrings in the list into a list of tuples where the first element of the tuple would be the substring and the second element would be the larger string that contains the substring. The expected output is given below I’ve written the following code which a…
Extracting sublists of specific elements from Python lists of strings
I have a large list of elements From this list i want to extract several sublists for elements start with the letters “qfg1” “qdg2” “qf3” “qd1” and so on. such that: I tried to do: but it gives an empty lists, how can i do this without the need of doing loops as…
Apply string in list according to beginning of the strings in a pandas dataframe column
Let’s take an example. I have a list of categories that are identified : The strings in that list can’t be a substring of another string in that list. And a dataframe : I would like to add a column Category to this dataframe. If the string in the column Items starts as a string in L_known_categori…
Best practice when substring is missing from string
I’m extracting data from an API and one of the fields is a string from which i want to extract multiple substrings(7 ideally). To get those substring I’m using the index() method. There could be cases when one or more of these substrings(Reason ,Improvements_Done, Improvements_Planned etc) could b…
Remove a substring from a list of string using Pandas
I’m trying to search some post related to remove substring key but unfortunately those solutions don’t work in my case. Could you help me ? Input: Output Answer You don’t even need pandas for that. A simple list comprehension should be enough
How can I find all common sub strings using Rust , Python, javascript?
Problem Background Git is an awesome version control system, I want learn git by writing my own version control system. The first step I have to do is implement a string diff tool. I’ve read this blog and this paper. In order to get the diff of two strings, I need to locate the common part. Hence, I cam…
substitute ‘=’ sign when an integer is encountered using python
Hi I am new to python and regex. I have a string which i want to reformat/substitute i did try with: Expected output: Answer You can match either the start of the string, or a space and comma without using a capture group and assert not a digit after matching a single digit. The pattern matches (?:^|, ) Non c…
How to replace and insert a new substring in python?
This is a working code and mabybe not very effcient code to replace a substring with another substring previously modified Input string : Output string: It has to replace substring like ‘part1’ ‘part2 an so on , with ‘PT’ and copy it between title and year substring Code: but whe…